I received this camera as a present for my birthday, and am happy to say that it rates as the best birthday present ever! The best feature about the LS633 is the beautiful big screen on the back for viewing your pictures.
Now, I'm not much of a technical person, and I'm sure you can find the technical info elsewhere - all I can say to you is that this is the best quality screen I've seen. All of my friends have digi cameras (who doesn't these days) but when they view pictures on their screens - if you tip the camera the wrong way you can only see the image in negative, or funny colours. This is annoying when more than one person is trying to look at the picture. This doesn't happen with the LS633. It's the same clear, great wuality, beautiful colours from every angle.
It's very easy to use also, when lending it to people or asking people to take a picture for me I never have to explain it (this is a definite plus!).
The only drawback is that it is not the smallest camera that you'll find on the market. I find that with all the other good features though, this is a negative that doesn't really matter all that much.